• 기술혁신학회지
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• 제12권2호
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• pp.430-456
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• 2009

본 연구에서는 국가가 산업기술경쟁력 제고를 위해 전략적으로 수행하는 산업기술지원 연구개발사업의 연구개발성과물인 기술의 실시를 위해 납부하는 기술료 관리의 제반 문제점을 분석하고 그 개선 방안을 제시하였다. 본 연구의 결과를 바탕으로 제안하는 개선책은 다음과 같다. 우선 산업기술지원 연구개발사업의 기술료 징수와 관련하여 첫째, 개발기술의 유형에 맞는 고정기술료와 경상기술료의 기술료 징수체계를 마련 둘째, 제품수명주기(Product Life Cycle)를 고려하여 산업분류별로 징수기간을 설정하는 방안을 마련할 필요가 있으며 셋째, 무형적 발생품의 소유권에 대한 재검토가 필요하다. 한편으로는 기술료의 수명주기 전 과정에 대한 효율적인 통합관리를 위해 평가관리 전담기관 내에 기술가치평가업무, 기술이전업무, 기술사업화 지원업무, 기술료 징수 및 관리업무, 성과확산 및 보고업무를 전담하는 조직을 조속히 신설하여야 한다는 것이다.

• 한국산학기술학회논문지
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• 제21권4호
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• pp.190-200
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• 2020

본 연구는 2018년 정부의 추경사업으로 시행된 이공계 중심 청년 일자리 창출과제인 '청년TLO 육성사업'의 효과성을 검증하는 데 목적이 있다. 선행연구를 통하여 사업 만족도와 취·창업 성과에 영향을 미치는 5가지 요인의 인과 모형을 도출하였다. 실증연구를 위하여 사업을 실행하고 있는 전국 66개 대학의 산학협력단을 통해 청년TLO를 대상으로 설문지를 배포하여 2,363개를 수집하였다. SPSS 23.0 통계패키지를 이용하여 모형의 실증분석을 실시하였다. 분석결과, 사업 만족도에 영향을 미치는 요인으로 선정한 1) 모집·선발, 2) 교육 지원, 3) 근로조건, 4) 사업 관리, 5) 활동 지원의 5개 변수 모두 유의한 변수로 나타났고 사업 만족도는 취·창업 성과에 미치는 변수임을 확인했다. 본 연구는 청년 TLO의 성과분석을 위한 광범위한 최초의 실증연구이며 연구자의 독립변수 모두가 사업 만족도에 영향을 미치는 인자임을 확인했다. 실무적인 시사점으로 사업 운영요소의 향상은 사업 만족도를 향상시키고, 이는 정부의 목표인 청년의 취·창업 성과 제고를 위해 필요한 요소임을 추정할 수 있다. 하지만 본 연구의 한계점으로는 취·창업 성과 지표로 객관적 지표가 아닌 주관적 취·창업 인지도 조사이기에 모형의 해석에 유의할 필요가 있다고 판단된다.

• 산업경영시스템학회지
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• 제39권2호
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• pp.64-71
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• 2016

Recently, nanotechnology has grown as one of the leading science technology along with other converging technologies such as biology, information, medicine etc., bringing the continuous investment of the government in nano-related field. However, it is difficult to measure and evaluate the performance of the national research and development programs because of the multidimensional character of the expected outcomes. This study aims to measuring efficiency of the national nanotechnology research and development programs using DEA model. The decision making units are nine nano-related ministries including the Ministry of Science, ICT and Future Planning. The input variables are total expenditure, number of the programs and average expenditure per program. The output variables are science, technology and economic indicator, and the combination of these outputs are respectively measured as seven different DEA cases. The Ministry of Science, ICT and Future was the first efficient ministry in total technical efficiency. Ministry of Agriculture, Food and Rural Affairs and the Ministry of Food and Drug Safety were efficient in pure technical efficiency, when the Ministry of Commerce Industry and Energy took the first in the scale efficiency. The program efficiency was affected by organizational characteristics such as the institution's scale, the concentration of the research paper or the patent, technology transfer or the commercialization. The result of this study could be utilized in development of the policy in the nanotechnology and the related field. Furthermore, it could be applied for the modification of expenditure management or the adjustment of the research and development programs' input and output scale for each ministry.

• Composites Research
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• 제36권6호
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• pp.416-421
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• 2023

Multifunctional composite materials capable of both load-carrying and energy functions are promising innovative candidates for the advancement of contemporary technologies owing to their relative feasibility, cost-effectiveness, and optimized performance. Carbon fiber (CF)-based structural batteries utilize the graphitic inherent structure to enable the employment of carbon fibers as electrodes, current collectors, and reinforcement, while the matrix system is an ion-conduction and load transfer medium. Although it is possible to enhance performance through the modification of constituents, there remains a need for a systematic design methodology scheme to streamline the commercialization of structural batteries. In this work, a bi-phasic epoxy-based ionic liquid (IL) modified structural battery electrolyte (SBE) was developed via thermally initiated phase separation. The polymer's morphological, mechanical, and electrochemical characteristics were studied. In addition, the interfacial shear strength (IFSS) between CF/SBE was investigated via microdroplet tests. The results accentuated the significance of considering IFSS and matrix plasticity in designing composite structural batteries. This approach is expected to lay the foundation for realizing smart structures with optimized performance while minimizing the need for extensive trial and error, by paving the way for a streamlined computational design scheme in the future.

• 한국펄프종이공학회:학술대회논문집
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• 한국펄프종이공학회 2006년도 PAN PACIFIC CONFERENCE vol.1
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• pp.19-29
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• 2006

Drying is the least developed of all unit operations of paper and board manufacture. While groundbreaking developments were Introduced during the several past decades in forming, pressing and calendering, no radical changes occurred in drying. The cylinder-drying technology is now more than 200 years old and, while it was subject to many incremental improvements, many of its inherent problems persist. We believe that conventional drying is now approaching the end of its life and the industry is ready for a major breakthrough in drying. Indeed several innovative technologies already exist at various stages of development or commercialization. In general, the novel drying technologies are striving to increase the drying rate, improve the product quality and boost the energy efficiency of drying. A novel, drying method, $Papridry^{TM}$, which combines conductive and convective heat transfer to obtain very high drying rates, is at an advanced stage of development at Paprican. The results obtained when drying printing paper ana board on a self-standing pilot $Papridry^{TM}$ machine and on the pilot paper machine equipped with a tandem of two $Papridry^{TM}$ units demonstrate both, the high drying rate and improved product quality achieved by using this drying method. A mathematical model of this operation has been developed and the software compiled with this model was used to calculate the effect of installing a $Papridry^{TM}$ unit into an existing dryer section. The model also allows to calculate the z-direction distribution of moisture and temperature at various points of the dryer section.

• 한국작물학회지
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• 제63권3호
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• pp.219-228
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• 2018

Weedy rice (Oryza sativa) is a semi-wild rice grown in paddy fields and is more adapted to the environment than cultivated rice. Therefore, it is expected that the seeds of weedy rice might contain some chemicals related to its environmental adaptation, such as antioxidants, which may be useful for nutritional and medicinal purposes. This study was carried out to investigate the antioxidant activities of weedy rice compared to a Korean-bred rice cultivar, Sindongjin (SDJ), and to screen lines that show higher antioxidant activity in 199 accessions of weedy rice germplasm collected in Korea. DPPH (1,1-diphenyl-2-picrylhydrazyl) radical scavenging activity ranged from 31.0 to 91.7%, with an average of 82.5%, and 19 accessions that showed more than 91% antioxidant activity were selected. The 19 accessions were re-screened against non-germinated brown rice (BR) and germinated brown rice (GBR) using four assays, total phenol determination, DPPH radical scavenging, ABTS radical scavenging, and reducing power activities. The results showed that accession 'WD3' had the highest antioxidant capacity in both BR and GBR, suggesting that WD3 is a promising potential source of antioxidants and could be developed as a potentially functional substance material.

• Journal of Biosystems Engineering
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• 제38권4호
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• pp.264-269
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• 2013

Purpose: This study was carried out to develop a classification index and grade levels to rate agricultural heaters for energy efficiency classification. Methods: The classification index was developed mainly by taking simplicity of calculation and easy access to relevant data into consideration. The grade levels were developed on the basis of a 5-grade classification system in which graded heaters are to be normally distributed over the grades. The value of each grade level were determined in terms of the classification index values calculated using the published performance data of agricultural heaters tested at the FACT in Korea over the past 12 years. Results: The thermal efficiency of agricultural heaters based on the enthalpy method was proposed as a reasonable classification index. The grade levels were proposed in equation form for three types of agricultural heaters: fossil fuel heaters, wood pellet heaters and wood pellet boilers. A reasonable energy efficiency classification of agricultural heaters could be performed using the proposed classification index and grade levels. Conclusions: It is expected that energy saving programs will be extended to agricultural machines in the near future. The classification index and grade levels to rate agricultural heaters for energy efficiency classification were developed and proposed for such near future to come.

• 기술혁신학회지
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• 제17권3호
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• pp.604-628
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• 2014

본 연구는 산업기술혁신사업의 성과창출에 미치는 영향을 산학연협력형태를 중심으로 분석하여 산학연협력과 관련된 정책이나 전략 수립에 시사점을 제공하는 것을 연구목적으로 하였다. 이를 위해 산업기술혁신사업 성과활용조사 자료를 이용하여 협력형태별로 가설을 설정하였다. 협력연구가 단독연구에 비해 성과가 높게 나타나는지, 협력연구는 주관기관 유형 및 협력파트너에 따라 성과가 달라지는지를 논문, 특허, 기술이전, 사업화, 신규고용을 대상으로 이항 로지스틱 회귀분석을 이용하여 실증분석하였다. 분석결과 협력연구는 단독연구에 비해 성과가 높게 나타났다. 구체적으로 민간기업이 주관하는 연구과제에서는 비영리기관과 협력할 때 논문, 특허, 신규고용 성과가 증가하는 것으로, 반면 민간기업간 협력연구에서는 논문, 기술이전 등의 성과창출은 감소하는 것으로 나타났다. 비영리기관이 주관하는 연구과제에서 민간기업과 협력할 경우, 특허, 기술이전 등 지식 공유 확산 차원의 성과는 증가하는 것으로 나타났다. 본 연구는 산업기술혁신사업 등 정부연구개발 사업의 연구개발 협력과 관련된 정책 수립에 시사점을 제시할 것으로 판단된다.

• 원예과학기술지
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• 제29권6호
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• pp.583-591
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• 2011

'Formosa' plums were picked at three maturity stages according to skin redness, treated with $1{\mu}L{\cdot}L^{-1}$ 1-MCP at $10^{\circ}C$ for 24 h and then stored for 21 days at $10^{\circ}C$. Ethylene production, respiration rate, firmness, color, TSS, TA, and ethanol concentration were determined. Total phenolic content, total flavonoid content, and antioxidant capacity were determined periodically by separating the flesh from the peel. Ethylene production and respiration rate were strongly inhibited in all stages of the 1-MCP-treated fruit, while ethylene production dramatically increased in all stages of non-treated fruit until 11 days after harvest, after which it decreased until the end of the experiment. The respiration rate of the stored fruit increased for 11 days in stages 1 and 2 and for 7 days in stage 3 and decreased after. 1-MCP-treated fruit in all stages showed delay in fruit quality changes such as firmness, TA, skin color, and ethanol concentration, but non-treated fruit did not. Total phenolic contents, total flavonoid contents and antioxidant capacity of 'Formosa' plums were not affected by 1-MCP treatment or maturity stage. However, those values were higher in the peel than in the flesh.

• Journal of Biosystems Engineering
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• 제37권4호
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• pp.215-224
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• 2012

Purpose: This study was conducted to classify the energy efficiency of 131 tractor models tested during from 2006 to 2010 in Korea. Methods: Four sub-indexes were developed using the fuel consumptions at 60% and 90% of rated speed with partial loads and at pull speeds of 3.0 km/h and 7.5 km/h with maximum drawbar pull. Weighting factors of the sub-indexes were also considered to reflect the characteristics of tractor's actual working hours in Korea. Four sub-indexes were integrated into a classification index. Using the developed classification index, a five-classification system was made on the basis of normal distribution of tractors over the classification range. Percentage of $1^{st}$ grade interval was expected to be close to 15%, $2^{nd}$ grade 20%, $3^{rd}$ grade 30%, $4^{th}$ grade 20%, $5^{th}$ grade 15%. Results: Number of $1^{st}$ grade was 21, $2^{nd}$ grade 23, $3^{rd}$ grade 39, $4^{th}$ grade 33, $5^{th}$ grade 15 among 131 models. Conclusions: Classification index was developed by integrating four sub-indexes. By the classification method using developed index, distribution of classified tractors was acceptable for practical application.